Turbocharger construction

摘要

The turbocharger has a rotor shaft (9) having two ends, a turbine rotor (2) mounted on one end of the rotor shaft (9), a compressor impeller (8) mounted on the other end of the rotor shaft (9), a bearing unit (3) including a plurality of bearings (14) for journally supporting a substantial length of the rotor shaft, a main housing or integrated housing (1) including a turbine housing portion (1a) for housing the turbine rotor (2) and a bearing housing portion (1b) for housing the bearing unit (3), and a compressor impeller housing (34) attached to the main housing for housing the compressor impeller (8). A heat insulator (10; 11) is provided between the turbine housing portion (1a) and the bearing housing portion (1b).